Alternate delivery attachment for box setting up machines



Jan. 17, 1961 R. A. PEARSON ETAI. 2,968,388

ALTERNATE DELIVERY ATTACHMENT FOR BOX SETTING up MACHINES Filed Sept. 29, 1959 2 Sheets-Shet 1 BY Ben/1y Werem/czyk Jan. 17, 1961 R, A. PEARSON ET AL 2,958,388

ALTERNATE DELIVERY ATTACHMENT FOR BOX SETTING up MACHINES Filed Sept. 29, 1959 2 Sheets-Sheet 2 INVENTORS. Pe/n/m/a A Pea/$00 BY Bear/y la erem/czyfi ALTERNATE DELIVERY ATTACHMENT FOR BOX SETTING UP MACHINES Reinhold A. Pearson, E. sos 1 9th Ave., and Benny Weremiczyk, E. 707 29th Ave., both of Spokane, Wash.

' Filed Sept. 29, 1959, Ser. No. 843,113

4 Claims. (Cl. 19833) This invention relates to an attachment for box setting up machines which will deliver the finished boxes alternately to rows for final delivery on a conveyor.

In order to accommodate six or twelve can boxes in a normal twenty four can loading machine, the opened boxes must be arranged side by side on the delivery conveyor. This attachment has been devised so as to position the boxes in timed relation with the output of the box setting up machine.

It is an object of this invention to combine an alternating delivery system with a tipping bar to set the boxes upright on the final conveyor.

It is another object of this machine to provide a simple maintenance free shifting device to insure proper spacing of the two final rows on the conveyor.

These and further objects will become evident from the following description and the accompanying drawings which disclose one preferred embodiment of the invention.

In the drawings:

Figure 1 is a fragmentary side elevational view of the invention;

Figure 2 is a fragmentary top plan view of the invention;

Figure 3 is a sectional view taken along line 3-3 in Figure 2 with the box in delivery position; and

Figure 4 is a sectional view taken along line 4-4 in Figure 2 with the box being tipped.

Referring now to the drawings the invention is shown as applied to a box setting up machine of the type shown in our prior Patent No. 2,827,838, dated March 25, 1958.

The timing shaft of the machine is provided with a sprocket wheel 11 that drives a sprocket chain 12 which in turn drives a sprocket wheel 13 fixed on a shaft 14 that is journaled in bearings 15 and 16 on the framework 17 of the machine. Also fixed on the shaft 14 there is a bevelled gear 18. The boxes B after they are set up are delivered to a conveyor 20. Above the conveyor 20 are two side guides 21 and 22 that are pivoted on a rear cross member 17a of the frame 17 by pivot pins 21a and 22a. These-side guides are spaced apart to receive a set up box between them. The boxes as they leave the setting up mechanism have their open side facing the side guide 21. The side guide 21 carries a tipping bar 23 that extends upwardly and rearwardly at an incline from a depending arm 24 on the guide 21 to a point 25 near the top of the guide 21 and some distance away from the frame member 17a.

The side guide 22 has a cam follower 26 thereon near its pivot 22a. The side guide 22 is extended forwardly and bent to provide a lip 22b extending toward the box setting up mechanism. A depending pin 27 on the lip 22b has one end of a spring 28affixed thereto. The other end of the spring 28 is secured to a box support plate 17b of the frame 17. The spring 28 is in tension so it tends to press the cam follower 26 against a cam 29.

, 2,968,388 Patented Jan. 17, 1961 The cam 29 is fixed on a shaft 30 that is carried by bearings 31 on the frame 17. The lower end of the shaft 30 has a bevelled gear 32 fixed thereon and meshing with the bevelled gear 18. The sizes of the bevelled gears 18 and 3 2 and the sprocket wheels 11 and 13 are selected to rotate the cam 29 once for each two box setting up cycles of the main shaft 10. The side guide 21 is caused to swing in unison with swinging of the guide 22 by a cross bar 33 which includes a turnbuckle 34 for adjustment and which is pivoted at 35 to the guide 21 and at 36 to the guide 22.

With the mechanism just described the guides serve to deposit the set up boxes on the conveyor 20 just near one side, then near the other side of the conveyor, thus' side of the box uppermost ready to receive the cans,

bottles, etc. that are to be packed in the boxes.

The timed relation is important in the application of this attachment to machines for setting up boxes which receive six or twelve cans. The chain 12 and sprockets 11 and 13 constitute a timing mechanism whereby the boxes can be alternated as desired in a specific relationship to accommodate the requirement of the can loading machine. When the boxes are automatically set side by side, the usual twenty four can loading machine may be used without any adjusting and at its full capacity.

It is evident that various mechanical modifications such as the use of separate conveyors might be adapted to this embodiment without use of inventive skill beyond the scope of this invention. Therefore this scope is not intended to be limited except insofar as the invention is clearly defined in the annexed claims.

Having disclosed our invention, we claim:

1. An alternate delivery attachment for box setting up machines comprising conveyor means located adjacent to the box outlet of the machine and extending rearwardly from the box outlet, support means for the machine, vertical pivot means positioned upon said support means adjacent to the conveyor means, guide means pivotally mounted upon said pivot means, tilting means carried by said guide means, cam means in operative engagement with said guide means adapted to periodically pivot said guide means in a first direction, and means connected to said guide means and said support means to hold said guide means in engagement with said cam means.

2. An alternate delivery attachment for box setting up machines comprising conveyor means located adjacent to the box outlet at the rear of the machine and extending rearwardly from the machine, a support frame for the machine, first and second vertical pivot means positioned on said support frame on each side of the conveyor means, first and second guide means pivoted upon said first and second pivot means respectively, rigid horizontal spacing means pivotally connecting said first and second guide means and spaced from said first and second pivot means respectively, cam follower means positioned on said first guide means, horizontal cam means rotatably mounted upon said support frame for sliding engagement with said cam follower means, drive means operatively connected to said cam means, said cam means being designed to periodically pivot said first and second guide means in a first direction, and biasing means attached between said first guide means and said frame adapted to urge said first and second guide means in a direction opposite to said first direction, said second guide means including tilting means comprising a diagonally placed rod located in the path of the boxes and extending upwardly and rearwardly along said second guide means.

3. An alternate delivery attachment for box setting up machines comprising conveyor means extending rearwardly from the box ejecting portion of the machine, the

conveyor means being of a width sufficient to accommodate twarews of boxes, first and second parallel vertical guide plates pivoted on the machine and extending rearwardly, lengthwise over-the conveyor, box tilting means attachedto one or, said guide plates inthe path ofithe ejected boxes, said box tilting means comprising a rod extending from an elevation below the conveyor means to a rear elevation sufiicie'ntly elevated above the conveyor means to tilt a box ninety degrees, a pivoted spac ing bar attached tov 'said first and second parallel guide" plates, cam follower means mounted on one of said guide plates, horizontal rotary cam means jonrnallednpon 'said machine, drive means operatively connectedto' said cam means, said cam means being in operative engagement with said cam follower means, said cam means being adapted to move said firs't and second parallel plates from one side of the conveyo1 means to the remaining side of said conveyor means, and to position, said plates at each of these extreme positions for a fixed duration during each rotation of said cam means, and means to maintain 4v engagement of said cam means and said cam follower means.

4. The device as defined injclaim 3 wherein said drive means comprises a first sprocket on the timing shaft of the machine, a second sprocket operatively connected to said cam means, and a chain in meshing engagement with said first and second sprockets having a timed relation withsaid machine so as to ,rotate said cam means once during two boxsetting up cycles.

References Cited in the file of this patent UNITED STATES PATENTS we. n g t 

